376 lines
11 KiB
C
376 lines
11 KiB
C
/* rsautl.c */
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/*
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* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
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* 2000.
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*/
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/* ====================================================================
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* Copyright (c) 2000 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <openssl/opensslconf.h>
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#ifndef OPENSSL_NO_RSA
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# include "apps.h"
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# include <string.h>
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# include <openssl/err.h>
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# include <openssl/pem.h>
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# include <openssl/rsa.h>
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# define RSA_SIGN 1
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# define RSA_VERIFY 2
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# define RSA_ENCRYPT 3
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# define RSA_DECRYPT 4
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# define KEY_PRIVKEY 1
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# define KEY_PUBKEY 2
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# define KEY_CERT 3
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static void usage(void);
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# undef PROG
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# define PROG rsautl_main
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int MAIN(int argc, char **);
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int MAIN(int argc, char **argv)
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{
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ENGINE *e = NULL;
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BIO *in = NULL, *out = NULL;
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char *infile = NULL, *outfile = NULL;
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# ifndef OPENSSL_NO_ENGINE
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char *engine = NULL;
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# endif
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char *keyfile = NULL;
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char rsa_mode = RSA_VERIFY, key_type = KEY_PRIVKEY;
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int keyform = FORMAT_PEM;
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char need_priv = 0, badarg = 0, rev = 0;
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char hexdump = 0, asn1parse = 0;
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X509 *x;
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EVP_PKEY *pkey = NULL;
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RSA *rsa = NULL;
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unsigned char *rsa_in = NULL, *rsa_out = NULL, pad;
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char *passargin = NULL, *passin = NULL;
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int rsa_inlen, rsa_outlen = 0;
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int keysize;
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int ret = 1;
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argc--;
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argv++;
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if (!bio_err)
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bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
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if (!load_config(bio_err, NULL))
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goto end;
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ERR_load_crypto_strings();
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OpenSSL_add_all_algorithms();
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pad = RSA_PKCS1_PADDING;
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while (argc >= 1) {
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if (!strcmp(*argv, "-in")) {
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if (--argc < 1)
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badarg = 1;
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else
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infile = *(++argv);
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} else if (!strcmp(*argv, "-out")) {
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if (--argc < 1)
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badarg = 1;
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else
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outfile = *(++argv);
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} else if (!strcmp(*argv, "-inkey")) {
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if (--argc < 1)
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badarg = 1;
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else
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keyfile = *(++argv);
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} else if (!strcmp(*argv, "-passin")) {
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if (--argc < 1)
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badarg = 1;
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else
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passargin = *(++argv);
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} else if (strcmp(*argv, "-keyform") == 0) {
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if (--argc < 1)
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badarg = 1;
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else
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keyform = str2fmt(*(++argv));
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# ifndef OPENSSL_NO_ENGINE
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} else if (!strcmp(*argv, "-engine")) {
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if (--argc < 1)
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badarg = 1;
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else
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engine = *(++argv);
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# endif
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} else if (!strcmp(*argv, "-pubin")) {
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key_type = KEY_PUBKEY;
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} else if (!strcmp(*argv, "-certin")) {
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key_type = KEY_CERT;
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} else if (!strcmp(*argv, "-asn1parse"))
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asn1parse = 1;
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else if (!strcmp(*argv, "-hexdump"))
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hexdump = 1;
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else if (!strcmp(*argv, "-raw"))
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pad = RSA_NO_PADDING;
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else if (!strcmp(*argv, "-oaep"))
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pad = RSA_PKCS1_OAEP_PADDING;
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else if (!strcmp(*argv, "-ssl"))
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pad = RSA_SSLV23_PADDING;
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else if (!strcmp(*argv, "-pkcs"))
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pad = RSA_PKCS1_PADDING;
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else if (!strcmp(*argv, "-x931"))
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pad = RSA_X931_PADDING;
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else if (!strcmp(*argv, "-sign")) {
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rsa_mode = RSA_SIGN;
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need_priv = 1;
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} else if (!strcmp(*argv, "-verify"))
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rsa_mode = RSA_VERIFY;
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else if (!strcmp(*argv, "-rev"))
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rev = 1;
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else if (!strcmp(*argv, "-encrypt"))
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rsa_mode = RSA_ENCRYPT;
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else if (!strcmp(*argv, "-decrypt")) {
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rsa_mode = RSA_DECRYPT;
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need_priv = 1;
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} else
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badarg = 1;
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if (badarg) {
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usage();
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goto end;
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}
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argc--;
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argv++;
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}
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if (need_priv && (key_type != KEY_PRIVKEY)) {
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BIO_printf(bio_err, "A private key is needed for this operation\n");
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goto end;
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}
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# ifndef OPENSSL_NO_ENGINE
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e = setup_engine(bio_err, engine, 0);
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# endif
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if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
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BIO_printf(bio_err, "Error getting password\n");
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goto end;
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}
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/* FIXME: seed PRNG only if needed */
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app_RAND_load_file(NULL, bio_err, 0);
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switch (key_type) {
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case KEY_PRIVKEY:
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pkey = load_key(bio_err, keyfile, keyform, 0,
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passin, e, "Private Key");
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break;
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case KEY_PUBKEY:
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pkey = load_pubkey(bio_err, keyfile, keyform, 0,
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NULL, e, "Public Key");
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break;
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case KEY_CERT:
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x = load_cert(bio_err, keyfile, keyform, NULL, e, "Certificate");
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if (x) {
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pkey = X509_get_pubkey(x);
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X509_free(x);
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}
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break;
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}
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if (!pkey) {
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return 1;
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}
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rsa = EVP_PKEY_get1_RSA(pkey);
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EVP_PKEY_free(pkey);
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if (!rsa) {
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BIO_printf(bio_err, "Error getting RSA key\n");
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ERR_print_errors(bio_err);
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goto end;
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}
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if (infile) {
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if (!(in = BIO_new_file(infile, "rb"))) {
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BIO_printf(bio_err, "Error Reading Input File\n");
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ERR_print_errors(bio_err);
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goto end;
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}
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} else
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in = BIO_new_fp(stdin, BIO_NOCLOSE);
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if (outfile) {
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if (!(out = BIO_new_file(outfile, "wb"))) {
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BIO_printf(bio_err, "Error Reading Output File\n");
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ERR_print_errors(bio_err);
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goto end;
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}
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} else {
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out = BIO_new_fp(stdout, BIO_NOCLOSE);
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# ifdef OPENSSL_SYS_VMS
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{
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BIO *tmpbio = BIO_new(BIO_f_linebuffer());
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out = BIO_push(tmpbio, out);
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}
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# endif
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}
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keysize = RSA_size(rsa);
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rsa_in = OPENSSL_malloc(keysize * 2);
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rsa_out = OPENSSL_malloc(keysize);
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if (!rsa_in || !rsa_out) {
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BIO_printf(bio_err, "Out of memory\n");
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ERR_print_errors(bio_err);
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goto end;
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}
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/* Read the input data */
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rsa_inlen = BIO_read(in, rsa_in, keysize * 2);
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if (rsa_inlen <= 0) {
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BIO_printf(bio_err, "Error reading input Data\n");
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exit(1);
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}
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if (rev) {
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int i;
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unsigned char ctmp;
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for (i = 0; i < rsa_inlen / 2; i++) {
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ctmp = rsa_in[i];
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rsa_in[i] = rsa_in[rsa_inlen - 1 - i];
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rsa_in[rsa_inlen - 1 - i] = ctmp;
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}
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}
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switch (rsa_mode) {
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case RSA_VERIFY:
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rsa_outlen = RSA_public_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
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break;
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case RSA_SIGN:
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rsa_outlen =
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RSA_private_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
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break;
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case RSA_ENCRYPT:
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rsa_outlen = RSA_public_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
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break;
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case RSA_DECRYPT:
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rsa_outlen =
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RSA_private_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
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break;
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}
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if (rsa_outlen <= 0) {
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BIO_printf(bio_err, "RSA operation error\n");
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ERR_print_errors(bio_err);
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goto end;
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}
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ret = 0;
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if (asn1parse) {
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if (!ASN1_parse_dump(out, rsa_out, rsa_outlen, 1, -1)) {
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ERR_print_errors(bio_err);
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}
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} else if (hexdump)
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BIO_dump(out, (char *)rsa_out, rsa_outlen);
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else
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BIO_write(out, rsa_out, rsa_outlen);
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end:
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RSA_free(rsa);
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BIO_free(in);
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BIO_free_all(out);
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if (rsa_in)
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OPENSSL_free(rsa_in);
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if (rsa_out)
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OPENSSL_free(rsa_out);
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if (passin)
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OPENSSL_free(passin);
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return ret;
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}
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static void usage()
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{
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BIO_printf(bio_err, "Usage: rsautl [options]\n");
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BIO_printf(bio_err, "-in file input file\n");
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BIO_printf(bio_err, "-out file output file\n");
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BIO_printf(bio_err, "-inkey file input key\n");
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BIO_printf(bio_err, "-keyform arg private key format - default PEM\n");
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BIO_printf(bio_err, "-pubin input is an RSA public\n");
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BIO_printf(bio_err,
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"-certin input is a certificate carrying an RSA public key\n");
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BIO_printf(bio_err, "-ssl use SSL v2 padding\n");
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BIO_printf(bio_err, "-raw use no padding\n");
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BIO_printf(bio_err,
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"-pkcs use PKCS#1 v1.5 padding (default)\n");
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BIO_printf(bio_err, "-oaep use PKCS#1 OAEP\n");
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BIO_printf(bio_err, "-sign sign with private key\n");
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BIO_printf(bio_err, "-verify verify with public key\n");
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BIO_printf(bio_err, "-encrypt encrypt with public key\n");
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BIO_printf(bio_err, "-decrypt decrypt with private key\n");
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BIO_printf(bio_err, "-hexdump hex dump output\n");
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# ifndef OPENSSL_NO_ENGINE
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BIO_printf(bio_err,
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"-engine e use engine e, possibly a hardware device.\n");
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BIO_printf(bio_err, "-passin arg pass phrase source\n");
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# endif
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}
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#else /* !OPENSSL_NO_RSA */
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# if PEDANTIC
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static void *dummy = &dummy;
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# endif
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#endif
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